jiewho has asked for the wisdom of the Perl Monks concerning the following question:

I am trying to use the Net::FTP module to download a file about 3 gb. When the local file reached 2147483647 bytes, I got an error message: can't not write to local file, or file size limit exceeded. But when I start the ftp program on the command line, I can download the complete file of 3 gb. My OS system is: Linux 2.4.7-10 #1 Thu Sep 6 17:27:27 EDT 2001 i686, and the Perl version is: 5.6, but the original built was configured to a different OS version of the following:

$ perl -V Summary of my perl5 (revision 5.0 version 6 subversion 0) configuration: Platform: osname=linux, osvers=2.4.6-3.

1enterprise, archname=i386-linux uname='linux stripples.devel.redhat.com 2.4.6-3.1enterprise #1 smp

tue jul 2 4 14:03:17 edt 2001 i686 unknown '

Was there a known issue like this when using this module in such an environment? Any input will be greatly appreciated.

Thanks, Jeff

Replies are listed 'Best First'.
Re: Net::FTP: file size limit on Linux?
by iburrell (Chaplain) on Apr 09, 2004 at 21:58 UTC
    If you can download the whole file on the command line, then the Linux kernel and glibc support files bigger than 2 GB. The problem is that version of Perl probably wasn't compiled large file support. It won't support files larged than 2 GB. In the 'perl -V' output look for any mention of 'uselargefiles'.

    I am guessing you are using RHEL 2.1. RHEL 3 has a Perl with USE_LARGE_FILES compiled in. You might consider upgrading the OS. The other option is rebuilding Perl with that flag turned on.

[reply]
      Thanks. Yes, the uselargefiles flag was undef. We will try to rebuild perl.
[reply]

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